Home / 89,239.68-123,116.76-56,975.48

Finding the Fourth Proportional to 89,239.68, 123,116.76 and 56,975.48

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Solution

The fourth proportional to 89,239.68, 123,116.76 and 56,975.48 is: 78,604.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,239.68 : 123,116.76 = 56,975.48 : x
  2. Step 2: Convert to fraction form
    89,239.68/123,116.76 = 56,975.48/x
  3. Step 3: Cross multiply
    89,239.68x = 123,116.76 × 56,975.48
  4. Step 4: Simplify right side
    89,239.68x = 7,014,636,497.04
  5. Step 5: Solve for x
    x = 7,014,636,497.04/89,239.68
  6. Step 6: Final answer
    x = 78,604.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.